Billy Butler is a regular boy with an over-protective older brother and a busy mom-except when he's Captain Billy, a space-traveling astronaut When Billy's important mission to the planet Mars is almost cancelled, Billy must use his smarts-and a little help from his new friends-to save the mission, and a Martian moon. Join Billy on an adventure filled with talking hats, strange creatures, magical rings, and a queen unlike anyone Billy's ever met. Billy the Astronaut is a blast, with science, magic, and laughter for the whole family.